Montreal to San Isidro: time difference
San Isidro is 1 h ahead of Montreal. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Montreal 18:28 6:28 PM San Isidro 19:28 7:28 PM You –:–
18:28 6:28 PM
Eastern Daylight Time · UTC-4
☀️ 07:14 · 🌙 18:07
19:28 7:28 PM
Argentina Standard Time · UTC-3
☀️ 06:10 · 🌙 19:10
·
+1 h
San Isidro is 1 h ahead of Montreal.
When you, Montreal and San Isidro are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇨🇦 Montreal
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇦🇷 San Isidro
1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇨🇦 Montreal | 🇦🇷 San Isidro |
|---|---|---|
| Local time | 18:28 | 19:28 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Eastern Daylight Time | Argentina Standard Time |
| UTC offset | UTC-4 | UTC-3 |
| Offset from Montreal | — | +1 h |
| IANA zone | America/Toronto | America/Argentina/Buenos Aires |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:14 | 06:10 |
| Sunset | 18:07 | 19:10 |
| Daylight | 10 h 53 min | 13 h |
| People on this clock | 1,762,949 | 45,190 |
Compare Montreal with another city
More comparisons with Montreal: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Montreal and San Isidro: common questions
How many hours ahead of Montreal is San Isidro?
The clocks in San Isidro are 1 hour ahead of those in Montreal (UTC−3 and UTC−4).
What time is it in San Isidro at the start of the working day in Montreal?
The working day in Montreal starts at 9:00 AM; in San Isidro it is 10:00 AM at that moment.
What time is it in San Isidro at the end of the working day in Montreal?
The working day in Montreal ends at 6:00 PM; in San Isidro it is 7:00 PM at that moment.
When is a good time to call San Isidro from Montreal?
Between 9:00 AM and 5:00 PM in Montreal – that is 10:00 AM to 6:00 PM in San Isidro – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in San Isidro?
From 11:00 PM in Montreal it is already the next day in San Isidro. The other way round, until 1:00 AM in San Isidro it is still the previous day in Montreal.
Does the time difference between Montreal and San Isidro change?
Yes. The clocks change only in Montreal. From November 1, 2026, San Isidro will be 2 hours ahead of Montreal.
